Multiple-feed sorting roll



I v 1,618,500 Feb. 22,1927. GEWILLCOX.

MULTIPLE FEpD SORTJNG ROLL Filed Jan. 1-923 l I y Y 7 /3 INVENTOR Patented Feb. 22, 192"?- umrgo -.s'rAr =;s {PATE T ol-"r os.

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' Application filed January 29, 1923. Serial Nana-669.

This invention rel-ates to sorting machines and pertains more particularly to machines for sorting beans and the like, The inven} tion pertains still more specifically to been sorting machines of the type in which a pair of flexible or yieldable rollers is employed,

arranged side by sideand revolved toward I each other at relatively high speed, the beans to be sorted being dropped upon the upper I or raised ends of a pair of inclined rolls, by which they are sorted according to smoothness, roughness and uniformity of shape, the smooth beans passing down the groove formed by the two upper advancing roll surfaces and the rough or uneven beans being caught between the rolls and passed downward into a separate receptacle.

lily present improvement has to do with the roll construction and arrangement in which each of the shafts carries a plurality of independent roll sections, the successive sections of one shaft spaced apart lengthwise from each other, the space between the adjacent ends of successive rolls forming a passageway down through which the smooth beans drop after having traveled the length of the short roll section. I

.Tliese spaces between the rolls and the passageways so formed are in my improvement arranged in staggered relation with each other, whereby the objects of my invention areattained. I v

These objects are first to provide a roll arrangement of the class described, in which the pair of rolls can be built up of a plurality of short roll sections of different lengths, these sections spaced apart lengthwise and forming delivery passageways so arranged that the passageway between the ends of successive rolls of one "set will lie opposite a single roll section of the other set. This arrangement enables me to use relatively long roll sections combined with relatively short sections, or if desired, relatively long sections arranged in staggered relation to each other, the purpose of this arrangement being to enable beansto befed to oneend of the pair of roll sections and to permit the good beans to travel only a short distance before coming to the end of one of the short sections and then being discharged from the machine. A second feed takes place at the intake end of the next section, the beans traveling a short distance, then being discharged as before. These two equivalents thereof. 7

feed places and two discharge placesv are provided in a short length of shaft and this result is accomplished by using relatively long roll sections instead of a plurality of very short sections, thereby reducing the cost ofmanufacture and enabling repairs and renewals of rolls to bemadeat relatively low expense.

lVith the foregoing and certainother objects in view which will appear later in the specification, my improvement comprises the devices described and claimed and the V In the drawings, Fig. ,1 is a perspective view of a pair of rolls embodying my im provement.

Fig. 2 is a top plan view of the same.

Fig. 3 is a fragmentary side view showing the position of the rolls with respect to the supporting frame. 7

1 and 2 are the usual roll shafts. relatively long roll section and l is a. second roll section spaced apart from section 3, to form a delivery passageway 5 between the ends of the sections.

A roll section 6 on shaft 2 is similarly separated by passageway 7 from the next sue Gee-ding roll section In the drawings I have omitted the mechanism by which the rolls are operated and the means for feeding material to the rolls and for removing the sorted material from the rolls, because those features do not form a part of my present invention as claimed.

Beans are fed to the rolls at successive points, as 9, 10, 11, the rough or split beans immediately passing through the rolls and delivered from beneath at the places indicated by numerals 12, 13, 14:, while good beans dI'OPPlHg'iIltO the respective passageways 5 and 7 are delivered from the ends of the roll sections at places indicated by numerals 15 and 16, the beans delivered from the lower end of the series of rolls being discharged at 17 It will be seen that the passageways 5 and 7 are in staggered relation with each other placed directly opposite each other instead of staggered. the feed would he at one end of the pair and the discharge would be atthe opposite end, Whereas by staggering them as shown in Figs. 1 and 2, each of the sections has a i'eed place at one end, a discharge place and a feed place near its middle and a discharge place at its end, thus practically duplicating the working capacity of the machine for a given number of roll sections.

laying thus described my inventiomwhat I claim and desire to secure by Letters Patent is:

1;A pair of parallel inclined shafts rotatable toward each other. a plurality of independent cylindrical roll sections 011 each shaft, said roll sections having smooth working faces spaced apart lengthwise the It placed directly opposite shaftto form delivery passageways, each delivery passageway on one roll disposed opposite to a smooth roll section on the other parallel shaft, an end of each smooth roll section co-operative with the smooth roll section of the other roll.

2. A pair of parallel inclined shafts, a plurality of independent smooth roll sections on each shaft, delivery passageways between successive roll sections on each shaft, the passageways on one roll disposed opposite to a smooth roll section on the other parallel shaft, the smooth roll section of each shaft co-operative with the smooth 1 roll section of the other parallel shaft.

In testimony whereof, I allix my signature.

GEORGE B. lVILLCOX. 

